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Expired Canadian patentCanada

Agricultural balers

CA 1290189 C · Owner: Decoene, Frans J.G.C. · Inventors: Decoene, Frans J.G.C.; Debusscher, Cyriel R.J.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A round baler comprises an expandable bale chamber arranged to expand from an initial generally vertically oriented wedge-shaped start chamber to a generally cylindrical final chamber, the bale-forming chamber being defined in part by first expandable bale-forming means arranged to define a majority of the final bale chamber, and in part by complementary bale-forming means.

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Granted October 8, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 8, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 1, 1986
GrantedOctober 8, 1991
Term endedOctober 8, 2008
Patent numberCA 1290189 C
Classification (IPC)A01F15/00

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedOct 1, 1986Patent grantedOct 8, 1991Term endedOct 8, 2008

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.